Since mid-September 2017, USDTRY is in a new impulsive wave. The price correction in the first two weeks of October was the 1st and current downtrend, started in 21st November, is 2nd corrective waves.
I think USDTRY will continue to soften to 3.70-3.80 range. 3.70 is quite unlikely but if there will not be any extraordinary matters then a correction to fib 0.382-0.50 seems likely.